Plow.



No. 635,762. Patented Oct. 3|, |899. T. H. EWING.

PLOWY (Application filed Aug. 15, 1899.)

(N0 Model.)

`Ntra TATES ArnNr tries.

THOMAS H. EWING, OF ELRENO, OKLAHOMA TERRITORY.

PLOW.

SPECIFICATION forming part of Letters Patent No. 635,762, dated October 31, 1899.

Application tiled August l 5, 1 8 9 9.

l" 0 I/ZZ whom it ntcty concern:

' Be it known that I, THOMAS H. EWING, a citizen of the United States, residing at Elreno, in the county of Canadian and Territory of Oklahoma, have invented a new and useful Plow, of which the followingis a specification.

This invention relates to plows, and particularly to a reversible share and means for supporting the same, the object in view being to avoid the necessity of grinding or pursuing the ordinary sharpening methods in connection with the share, and relies solely upon its use or movement through the soil to effect a bevel or sharpening in alternation on opposite sides at the front edge and in accordance with the position of the share, and thereby provide a convenient attachment fully under the control of the operator and readily changeable when necessary to always bring a sharp point into relative position and materially facilitate the plowing operation.

The invention consists, essentially, of a reversible share adapted to be applied to a turning-plow and secured adjacent the lower termination of the moldboard in such manner that it can be quickly detached, the opposite lower portions of the ends being deflected in reverse directions and the material at said ends adjacent the deflection being thickened to prevent too rapid wear and prolong the life of the share.

The inventionV further consists of the details of construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

In the accompanying drawings, Figure'l is a perspective view of a plow, showing the improved attachment applied thereto. Fig. 2 is a detail perspective view of the improved share. Fig. 3 is a section on the line .fr :c ofY Fig. 2. Fig. 4: is a detail perspective View` of a fastening attachment for use in applying the share to different forms of plows and shown in inverted position. Fig. 5 is a section through a part of the moldboard and share, showing the application of the attachnient illustrated by Fig. 4. Fig. 6 is an end elevation of the share.

Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numeral l designates a turning-plow Serial No. 727,298. (No model.)

to which the improved attachment is shown applied and particularly adapted. Said plow comprises a landside 2 and a moldboard 3, as in similar devices. The share 4L, forming the special subject-matter of the invention, is of trapezoidal contour, so as to provide two opposite points 5, presenting a lower cutting edge 6 between their greatest extent and having the distance between the upper or converged portions about equal to the lower terminating edge of the moldboard 3, against which the upper edge of the share abuts and forms'a Hush joint. ln the use of the share it is reversed and also turned over to bring the opposite points into a proper angle relative to the ground surface.

There are several dierent ways of fastening the share to the plow, and inA Fig. l an extension 7 is shown laterally projecting from the landside 2 and affords a sufficient bearing below the edge of the moldboard 3 to receive fastenings 8,Which are preferably removable. As shown by Figs. 4l and 5 and to support the improved reversible share in connection with different forms of plows or to adapt such plows to receive the attachment, a plate 9 is shown in detail perspective and transverse section. This plate comprises opposite securing portions 10 and l1, connected by an intermediate offset 12, so as to depress the at one end a iiange l3,adapted to bear against and be secured to the inner surface of the landside. The opposite end 14 of said plate is designed to conform to the contour of the outer elongated curved edge of the rnoldboard adjacent the point of attachment or application of the share and also the end of the latter. The manner of applying the share, as shown by Fig. l, will be employed when the plow as an entirety is primarily constructed to form the extension 7, and the plate 9 will be used on plows that do not have this primary arrangement.

The share 4t has its opposite ends atvlower portions curved gradually in reverse directions, as at 15, so as to give the point thus formed a downward deflection, whereby to induce a penetration of the soil and aproper IOO cut on the base of the furrow, as will be readily understood. This deflection of the opposite ends of the share extends over the same in a longitudinal direction but a short distance from the opposite ends, and the metal at the opposite ends is thickened, as at 1G, and clearly shown by Figs. 2 and 3. The thickened portions gradually converge toward the center of the share, which is intermediately of the same thickness, and by increasing the metal at the opposite points stated destructive wear of the share where it would be otherwise the weakest in this direction is obstructed. It is obvious that the point on the lower portion of opposite ends of the share would wear oft more rapidly if made of the saine thickness as the body, and hence the thickened arrangement has been adopted to overcome any tendency toward disadvantageous features.

In use the sharpened or beveled lower edge 17 of the share is turned down next to the ground or soil-that is, the downwardly-de lected end in eit-her position is applied to the front lower portion of the moldboard where the ordinaryform ot' point is usually attached. This brings the bevel that may extend longitudinally at the lower front edge of the share uppermost, and by constant use the said edge becomes dull by abrasion ofthe soil and another underbevel is formed. By the formation of the underbevel and a removal and reversal of the share another sharp edge is produced and positioned for effective operation. This alternate arrangement of the share may be carried on as long as the plow continues to operate effectively, and after the said share becomes too narrow it may be replaced by a new one of similar construction. The deflected points at opposite ends of the share extending in reverse directions, as stated, hold the plow firmly down to its work at one side and provide a clearance at the opposite side, and to accom modate right and left plows it will be necessary to make right and left shares or to arrange the deflections in such manner as to accommodate both styles of plow.

Changes in the proportions, size, and minor details of construction may be resorted to without in theleast departing from the spirit of the invention or sacrificing any of the advantages thereof.

Having thus described the invention, what is claimed as new is- Y l. The combination with a plow, of a reversible share consisting of a llat metal plate having the outer edge sharpened and of substantially trapezoidal form to provide opposite points which` are reversely bent or deflected, and means for detachably fastening the said share to the plow.

2. The combination with a plow, of a r'eversible share adapted to be sharpened by use and having opposite ends adjacent the lower edge formed to serve as points and deflected or bent in reverse directions, the back edge of the share being blunt, and an attaching device therefor adapted to be secured to the landside ofthe plow and having an intermediate offset extending longitudinally thereof of a dimension equal to the thickness of the back edge of the share to provide a linsh ittin g of the said share with the edge of the plow against which it is placed.

3. The combination with a plow, of a reversible share formed from a metal plate of substantially trapezoidal form to provide lower projecting corners which are bent or deflected in reverse directions to form opposite points, the metal of the plate adjacent the opposite extremities being thickened and the share adapted to be reversed and turned over to bring the opposite points in relative position with the plow.

4. The combination with a plow, of a reversible share having opposite ends formed to serve as points which project outwardly from the same side edge and are bent or deflected in reverse directions, said share being turned over to bring the opposite points in relative position to the plow.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

THOMAS H. EWING.

fitnessesz E. L. MARSH, ALBERT J. SMALLEY. 

